First let me be fair. It is nearly impossible to find ANY good T’s now days - ANY!
The graphics on this shirt were exceptionally brilliant. Now I have not washed it or worn it (other than trying it on for fit).
So my opinion (2 cents) would be as follows.
T-Shirts need to be made from heavier quality materials - not China’s wares. That means they should also fit American bodies sizing.
Neck holes should be wider, sleeves and shoulders to scale. The shirt should not be so tight it is uncomfortable. T’s should contour the body but allow loose draping for those who want to leave them out and not tucked in.
Lastly - why is black the only color offered most of the time? White, blues, lighter purples, reds, orange, yellow, gold, even greens can be used if the shades are selected for Americans. Stop trying to unisex everything too. Women have a different shape (Thank God!) and often tastes that span to more pastel colors.
Just my thoughts. For what it is worth.